Filter element



FIG. 1 is a bottom perspective view of the claimed design;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a left side elevation view thereof; and,

FIG. 8 is a right side elevation view thereof.

The broken lines in the drawings illustrate the portions of the design that are for illustrative purposes only and form no part of the claimed design. 

CLAIM We claim the ornamental design for a filter element, as shown and described. 